Panel



FIG. 1 is the perspective view of a panel showing my new design;

FIG. 2 is the front view thereof;

FIG. 3 is the rear view thereof;

FIG. 4 is the left side view thereof;

FIG. 5 is the right side view thereof;

FIG. 6 is the top view thereof;

FIG. 7 is the bottom view thereof; and,

FIG. 8 is the perspective view viewed from another visual angle. 

The ornamental design for a panel, as shown and described. 